美国得克萨斯仪器公司的研究人员最近开发出了更精细的芯片制造技术，能在指甲大小的芯片上集成４亿个晶体管，芯片时钟速度可高达１千兆赫。与之相比，目前普遍使用的台式计算机芯片最多集成有７５０万个晶体管，时钟速度最高为４５０兆赫。芯片的集成度是以两个晶体管之间的 Researchers at Texas Instruments Inc. recently developed finer chip-making techniques that integrate 400 million transistors on a nail-sized chip with a chip clock speed of up to 1 gigahertz. By comparison, up to 7.5 million transistors are integrated into desktop computer chips that are currently in widespread use, with clock speeds up to 450 MHz. The chip’s integration is between two transistors